<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>v-if和v-show指令</title>
</head>
<body>
    <script src="/js/vue.js"></script>
    <div id ="app">
       <p v-if="show">第一段文字</p>
       <p v-show="show">第二段文字</p>
    </div>
    
    
</body>
<script>
       let app =new Vue({
         el:"#app",
         data:{
          show:true
         }
       })
    </script>  
</html>